Webster gillette



(No Model.)

w GILLETTE. TELEPHONE SIGNALING SYSTEM.

Patented Feb. 13, 1894.

WITNESSES:

EZZZ7 MQ E NATIONAL umounuumn cumumr.

wAsuma'mN. c. c.

tro magnet f from which the conductor 9 exin signaling devices and the invention con- WEBSTER GILLETTE, OF NEW YORK,

WILLIAMS, OF

N. Y., ASSIGNOR TO ALEXANDER S. SAME PLACE.

TELEPHONE SIGNALING SYSTEM.

SPECIFICATION forming part of Letters Patent No. 514,823, dated February 13, 1894,

Application filed July 13,1898.

To all whom it may concern.-

Be it'known that I, WEBSTER GILLETTE, a c1tizen of the United States, residing at New York, in the county and State of New York, have invented new and useful Improvements in Electric Signaling Devices, of which the following is a specification.

This invention relates to an improvement sists in the novel features of construction set forth in the following specification and claims and illustrated in the annexed drawings in which Figure 1 is a diagram of the signaling de' vice with the switch in one position. Fig. 2 shows the switch in another position.

In the drawings theletter A indicates a lever or switch somewhat similar to a telephone switch, said switch being jointed or fulcrume'd at B and provided with a spring 0 and hook D onto which latter. the receiver is hung to draw or move the switch against theaction of spring 0. Said switch is made of insulating material and is provided with metallic or conducting strips E F G. An arm or horn H projects from the switch. The weight of the receiver suspended from hook D will draw or move the switch against the force of spring 0 and carry the strip E under or into contact with the fingers or springs I K (Fig. 2). At the same time the horn H pressing on the tinger or spring L will force the latter into contact with the strip M. The tendency of spring L when free is to move away from strip M so as to break contact with the latter as seen in Fig. 1. From the finger or contact piece L extends a conductor N to conductor 0 connecting by conductor P with a pole of battery Q. From the other pole of battery Q extends a conductorR to conductor S united to conductor T by a spring jack U V the use of which is hereinafter set forth. The conductor T has a circuit breaker W which is normally closed but which can be opened by a push button X. The conductor T extends to contact K. From contact I extend conductorsY Z joined bya circuit breaker anormally closed but which can be opened by push button b. The conductor Z connects by conductor cwith electro magnet d connected ate to elec- Serial No. 430,374- (No model.)

tends to conductor P. The electro magnets 01 f are designed to actuate an electric alarm having hammer h and bell 7:. The circuit breakers W a being closed and the switch A in the position shown in Fig. 2 the current from battery Q will pass through conductors R S T, contacts K E I conductors Y Z c and through the electro magnets 01 f and conductors g P back to battery Q, said current permanently vitalizing the electro magnets df so as to hold the bell hammer h fixed or motionless as the latter is permanently attracted or held to magnets 01 f by the means of battery Q. In case the circuitt'rombatteryQis broken as by actuating push button X or b the magnets (1 f are devitalized and the bell hammer it moves or drops into contact with the arm or spring is from which conductor 1 extends to battery m the latter being joined by conductor n to contact M. The current from battery m then passes through conductor Z to contact 7c and through the bell hammer h and conductor 0 through the magnets 61 f and conductors g 0 N through the contacts L M and conductor to battery m. In passin g through the magnets cl f the current from battery 7% vitalizes said magnets so as to draw hammer h away from contact is causing said hammer to strike or sound bell i. As soon as the hammer it leaves the contact the current from battery m is broken and the magnets d f are devitalized so that the hammer returns to contact it thus again closing the circuit. The

ham mer It thus keeps vibrating and sounding the bell 2'. When the telephone is taken off the hook D the spring 0 moves the switch A and horn H so as to free the spring L which latter now breaks the contact by moving away from the piece M as seen in Fig. 1 thus stopping the sounding of alarm The movement ofswitch A by spring 0 also brings the strips or contacts F G respectively under or into touch with the springs or fingers op and q 'r. The finger or contact 0 is connected by conductor 8 with the contact K or conductor T. The finger or contact 19 is connected by conductor 1. with the telephone receiver A which'as already noted when not in use is suspended from hook D. From receiver A extends conductor B about induction coil 0' and thence to conductor 0. The conductor F is also wound about coil 0' in the usual manner and connects the coil 0 with the telephone transmitter G from which latter extends conductor H to the local battery m. A conductor 1' connects battery on and contact piece q and a conductor D connects contact piece '1' and coil C. The coil 0 forms the induction coil for the transmitter G. A plug key K is connected by the conductors or connection L to a transmitter M. By introducing the plug key K into the spring jackU V the transmitter M can be inserted or looped into the circuit of the conductors S T. A plate or tag ct such as that of an ordinary hotel annunciator is provided with a contact I) which when the tag a is raised or out of sight is out of contact with the bar or conductor c. This contact I) has a conductor (1 extending to the alarm e from which conductor f extends to local battery 9 connected by conductor h to the bar 0.

The operation of the device is as follows: The contacts WV a being closed andthe tag a raised out of sight the current of battery Q through conductors R S T Y Z will permanently or continuously vitalize the magnets d f to hold the hammer h at rest and the contact I) being out ofaction the current through conductor 01' is broken so that the alarm e is at rest. By breaking the circuit of battery Q as occurs either on the actuation of button Xor b the hammer h will be freed and will drop or move to contact It so as to close the circuit from battery m and the hammer It now begins to sound the call bell 1'. At the same time the actuation of button Xorb will cause the annunciator tag a, to drop so that contact I) closes the circuit of battery g and the alarm or call bell c is actuated. On now taking the receiver A otf hook D the contact F will move into touch with contacts 0 1) thus bringing the receiver A into connection with conductor "1. At the same time the plug key K being inserted into spring jack U V will bring the transmitter M into connection with conductor T. The receiver and transmitter A M are thus brought into communication as the circuit is closed through partsAtpFOSTVKLMUSRQPO B O A. The transmitter G is connected with the circuit of the receiver A through the means of coil 0 as the conductorF from the transmitter connects with or extends about the coil 0 about which coil also winds the conductor B. Said coil 0 is connected to the local battery 1% by conductor D and contacts 0* G q, the conductors I H F completing the local circuit. A receiver can also be inserted into the circuit in proximity to the transmitter M in any well known way but I have found it simpler to use the part M both as transmitter and receiver. The tag a is held up by any suitable magnet permanently vitalized by the use of battery Q until the circuit from said battery Q is broken by either push button X or b. This arrangement is useful in its application to various localities such for example as hotels. The call hell 1' button I) and switch A with its adjacent mechanism being placed in a room and the button X part M and annunciatora with call bell e being placed in an office, the actuation of either button I) or X will actuate the call bells c e, and the removal of receiver A from hook D and insertion of plug key K into its spring jack U V will establish communication between parts A M. As the wires or conductors P T are now found in hotels or places having electrical annunc1ators, such wires can be used for establish ng the required connection Without any rewirlng or extraordinary labor being required.

The plug key K instead of being inserted into spring jack U V can be inserted into spring jack U V of the conductors S T leading from battery Q to a different room or locality than the conductor T, said wire S having its annunciator a and contact 12 to close the circuit of local battery g so that the transmitter M can be used for signaling or sending communications to various points.

By making the bar or contact a of sufficient length or by uniting a number of such bars or contacts in series a large number of annunciator tags with their respective circuits can be applied or grouped in a convenient locality. When an annunciator tag falls into contact it is noticed the alarm e keeps sounding even after the main circuit is closed until said tag is again raised by an attendant or person answering the call so that the alarm e cannot fail to attract attention.

What I claim as new, and desire to secure by Letters Patent, is-

1. The combination with a main circuit and battery Q, a local circuit and battery m, an alarm t', in said local circuit a receiver A and a transmitter G of a switch for shifting the main circuit from the alarm to the receiver and for shifting the local circuit from said alarm to the transmitter substantially as described.

22. The combination with an alarm t', a main circuit and battery Q for retaining the alarm and a local circuit and battery m for actuating said alarm of a circuit breaker as W for disconnecting the main line from the alarm while leaving the local circuit connected therewith, a receiver A, a transmitter G and a switch for shifting the main and local circuits to said receiver and transmitter substantially as described.

' 3. The combination with a main circuit and battery provided with circuit breakers as W a located at difierent points and a local circuit and battery of an alarm *5 connected to said circuits, 2. receiver, a transmitter and a switch for shifting the circuits from the alarm to the receiver and transmitter substantially as described.

4. The combination with an alarm t of a main circuit and battery Q for holding the alarm out of action, a local or actuating circuit and battery m for the alarm, a circuit breaker for disconnecting the main circuit adapted for connection by contact E when from the alarm and leaving the local circuit the switch A is in one position, and contacts free to actuate the alarm, a receiver, a trans- 0 p and q '1' adapted to be connected by the I 5 mitter and a switohfor shifting the main and contacts F G when the switch A is shifted 5 local circuits to the transmitter and receiver substantially as described.

substantially'as described. In testimony whereof I have hereunto set 5. The combination with a switch or lever my hand in the presence of two subscribing A provided with a horn or projection H and witnesses.

with contacts E F G of a spring finger L, con- WEBSTER GILLETTE. l0 tact M and contacts I K, said spring finger Witnesses:

being adapted to be pressed into connection WM. 0. HAUFF,

by the horn H and said contacts I K being E. F. KASTENHUBER. 

